sodium metabisulfite
Sodium Metabisulfite Sodium Metabisulfite introduction Other names: sodium pyrosulfite CAS No.: 7681-57-4 Molecular Formula: Na2S2O5 Molecular Weight: 190.10 White or light yellow crystalline powder, relative density is 1.4. Soluble in water (when 20°C, 54g/100ml water; when 100°C,81.7g/100ml water), acidic aqueous solution. Soluble in glycerine, slightly soluble in ethanol. Moisture easily decomposed, exposed in the air…